java.lang.NullPointerException: This exception has no message.

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One of the variables you're using is set to Null or you're passing a Null value to a method expecting another kind of value

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via Oracle Community by 807595, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at undefined.Mentor.addMentee(Mentor.java:103)
at undefined.SoftwareHouse.addMenteeToMentor(SoftwareHouse.java:296)
at undefined.Application.run(Application.java:72)
at undefined.Main.main(Main.java:15)

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